There is a LPG Cylinder Adapter is designed for use with our standard couplers or comparable details. They are offered in thread sizes common to a range of standard cylinders, and are available with metric threads upon request. Rod ends compensate for angular misalignment and allow the coupled member to rotate in both Rap and Non-Rap applications. It is made from solid brass and adapt the existing gas regulator to various types of gas cylinders. LPG Cylinder Adapter is very effective.